Effects of preganglionic sympathectomy on peptides in the rat superior cervical ganglion

Åke Dagerlind, Xu Zhang, Stephen Brimijoin, Björn Lindh, Tomas Hökfelt

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

A novel method to selectively lesion preganglionic sympathetic neurones has been combined with immunohisto-chemistry to study the expression of peptides in the rat superior cervical ganglion (SCG). Thus, systemic administration of monoclonal antibodies against acteylcholineste- rase (AChE) caused a marked reduction in the number of enkephalin (ENK)-positive fibres and a total disappearance of fibres immunoreactive for calcitonin gene-related peptide (CGRP) and AChE in the SCG. A marked increase in the number of galanin/galanin message-associated peptide (GAL/GMAP)-immunoreactive cell bodies was also observed. The present results indicate that probably all CGRP and most ENK containing fibres in the rat SCG are of preganglionic origin and that peptides not normally expressed in SCG neurones, e.g. GAL and GMAP, can be upregulated after deafferentation.

Original languageEnglish (US)
Pages (from-to)909-912
Number of pages4
JournalNeuroReport
Volume5
Issue number8
DOIs
StatePublished - Apr 1994

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Keywords

  • Acetylcholinesterase
  • Calcitonin gene-related peptide
  • Deafferentation
  • Enkephalin
  • Galanin
  • Galanin message-associated peptide
  • Immunohistochemistry

ASJC Scopus subject areas

  • Neuroscience(all)

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